The Kaggle Blueprints

Building a Recommender System using Machine Learning

“Candidate rerank” approach with co-visitation matrix and GBDT ranker model in Python

Leonie Monigatti
Towards Data Science
6 min readMar 1, 2023

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A waiter making recommendations to a customer
“An excellent choice, madam! Our burger pairs perfectly with a side and a drink. May I suggest some options?” (Image by the author)

Welcome to the first edition of a new article series called “The Kaggle Blueprints”, where we will analyze Kaggle competitions’ top solutions for lessons we can apply to…

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Developer Advocate @ Weaviate. Follow for practical data science guides - whether you're a data scientist or not. linkedin.com/in/804250ab